I have done 3-year Diploma in CS. Can I get lateral admission in this course?

Career Avenues, Delhi has below criteria for taking admissions to it's various courses:

Courses	Eligibility
MBA/PGDM	Candidate must be a graduate from a recognized college /university.
B.Com	Candidate must have passed 10+2 or equivalent examination from a recognized school/board.
B.E. / B.Tech	Candidate must have passed 10+2 or equivalent examination from a recognized school/board.
B.Ed	Candidate must have passed graduation from a recognized University/Institute.
B.Sc.	Candidate must have passed 10+2 or equivalent examination from a recognized school/board.
BCA	Candidate must have passed 10+2 or equivalent examination from a recognized school/board.
LL.B.	Candidate must have passed graduation from a recognized University/Institute.
UG Diploma	Candidate must have completed 10+2 from any recognised Board/Council.

Career Avenues, Delhi has courses such as M.Sc., MBA/PGDM, MCA, M.E./M.Tech, B.Com, B.Tech, B.Ed, B.Sc., BCA, LL.B., UG Diploma which are primarily in the stream of Science, Business & Management Studies, IT & Software, Engineering, Accounting & Commerce, Teaching & Education, Law.

Career Avenues, Lucknow has below criteria for taking admissions to it's various courses:

Courses	Eligibility
B.Com	Candidate must have passed 10+2 or equivalent examination from a recognized school/board.
B.Ed	Candidate must have passed graduation from a recognized University/Institute.
B.Sc.	Candidate must have passed 10+2 or equivalent examination from a recognized school/board.
BCA	Candidate must have passed 10+2 or equivalent examination from a recognized school/board.
LL.B.	Candidate must have passed graduation from a recognized University/Institute.
After 10th Diploma	Candidate must have passed 10th examination from a recognised board.

Engineering/B.Tech. Admission Procedure: * Shortlist colleges that match your preferences. * Download and fill admission forms. If the college website doesn't provide the same, collect it from the campus. * Get details of the relevant entrance exam and complete the application process which may include paying a nominal fee. * Check out the merit list put out by colleges after the entrance exam results are released * If you have made the list, you would need to pay a semester or a years fee to confirm the seat. * Some colleges may even have a personal interview or group discussion round. Thanks.

Of course you can do any course. Many universities provide this course online and offline through distance. You can search universities on shiksha.com also.